[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [fpNormalizeToNull](./rc-js-util.fpnormalizetonull.md) ## fpNormalizeToNull() function Normalizes `undefined` input to `null`. **Signature:** ```typescript export declare function fpNormalizeToNull(value: TValue): Exclude | null; ``` ## Parameters

Parameter	Type	Description
value	TValue

**Returns:** Exclude<TValue, undefined> \| null ## Remarks See [fpNormalizeToNull()](./rc-js-util.fpnormalizetonull.md).